Ask Question Asked 3 years, ... there may not be enough pressure built up to return the piston to the firing position. Nail Gun Hitachi NR90GC - 3-1/2" Gas Powered Clipped Head Framing Nailer Technical Data And Service Manual. You should consider tightening the air pressure, and seeing if this produces a good fire. Look first at the gauge, and see whether this has fallen below its usual strength. It is a Dewalt D51844. this could be a problem with a seal or O-ring. If new parts are needed to fix the nail gun, however, the tool will be out of commission until the parts arrive and are installed. If one of the wires are not in the grove it will cause problems. Check your manual for the manufacturer's guidelines on nail gun air pressure. the pin/hammer does not retract into the body on it's own every time. Nail guns are extremely efficient labor-saving devices, exchanging the stressful and exhausting swinging of a hammer for the press of a button. Metabo HPT USA manufactures durable, reliable professional & home improvement power tools, drills, saws, pneumatic nailers and more, Learn more ... Nail gun driver doesn't return after firing. I have seen the problem of not feeding or jamming caused by using nails of a different brand. Hey, I need to get my framing nailer working again asap. To be as efficient as possible in your construction or home projects, it is essential to adjust the depth on your nail gun properly. 3rd. Did take out a wrong size nail since the jam it has failed. Gas strip nailer (64 pages) Related Products for Hitachi NR 83A. if this problem suddenly occured if may have bad nails. Open the door and see if the wires that hold the nails are lying between the teeth of the advancing claw. Hitachi NR 83A2 Instruction and safety; Nail guns might be tough, macho, workhorse power tools and all, but, like how the rest of us might need a hot shower, a ball game, and good meal to feel our best after working hard all day, air nailers must be well-serviced between each use as well. The driver might not be fully returning to pickup the next nail. 2nd. Air nailers break down over time from normal wear. If your gun is firing weakly, or not at all, then you need to check the compressor. Get shopping advice from experts, friends and the community! I don’t know why some guns are made like this but it appears the manufacturer wants to be sure he can sell his nails. If you try to fire a pneumatic nail gun or stapler, but only hear air leaking when engaging the trigger, it's likely that your tool's "O-Ring" is not sealing properly.When the trigger is not depressed, you may not hear air leaking, as the valve is probably sealed. Gas strip nailer (78 pages) Nail Gun Hitachi NR 90GC Instruction And Safety Manual. I am not entirely sure how the driving piston is supposed to return, however, it fires but wont return without being pushed back up. take the nails out of the gun … To shoot brad again-have to open magazine, open latch on top of nailer-manually push pin/hammer back into the body-close latch, close brad magazine then fire nailer. Hitachi nail guns are top notch tools, but situations arise that create the need for troubleshooting the tool. Most troubleshooting situations are not difficult to overcome. Return the nails. The hammer on my Bostitch SB 1664 fails to return to fire position. Has failed at all, then you need to check the compressor the and. Not retract into the body on it 's own every time a different brand 90GC Instruction and Safety.. Manufacturer 's guidelines on nail gun driver does n't return after firing advancing. 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